We've seen glimpses of this guy already in the various videos that have shown up since E3, but now we can finally put a name to the ruthless badass: he is the Sith Warrior. According to a reveal interview with BioWare's James Ohlen over at GameSpot, the Sith Warrior will function as a frontline fighter, focusing purely on martial combat.
Players who select the Sith Warrior will be able to tailor their character as a purely offensive character that is able of cutting a swath through a whole room of enemies, or is also able to strike a balance between offense and defense and take down the bigger foes. In laymans terms, he'll be able to specialize in area of effect or single target damage, basically. From the interview, it also sounds like he will be able to tank as well, so he's beginning to sound quite similar to the "Sith Marauder" class I speculated on as a possible class in a recent editorial:
GS: Given the heavy armor, lightsaber abilities, and Force powers, how would you characterize the class in the parlance of what people expect from massively multiplayer characters? What kind of player will be most attracted to playing this profession?
JO: Players who enjoy being in front of the fight and deflecting enemy attacks will enjoy the Sith Warrior, as well as those who prefer dishing out loads of damage. I know those are two very different roles, but there are certain choices that a Sith Warrior can make that will specialize him in one form of combat over the other. We'll be talking more about that in the future.
In combat, the Sith Warrior will also build up rage, which he then uses on what BioWare is calling "spender" attacks. An example that was provided is the ability Impale. Impale can instantly kill a foe, or do an extreme amount of damage, so it would make more sense to use it on a fresh target, as opposed to a weakened one.
The class shares its roots with Darth Vader for inspiration, and will utilize iconic powers such as Force choke, as well as wear armor.
You'll be able to make moral choices as a Sith Warrior, too. While the class is certainly ruthless, you don't always have to be. For example, you could be ordered by your master to kill someone, and instead have them go off world and never return, in exchange for their life. While it doesn't appear you will be able to rescue cats from trees, or save the homeless, you should be able to hold back when you feel it is necessary.
For the full Sith Warrior reveal interview, head over to GameSpot.